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HD 156091 is a double star in the southern constellation of Ara. The primary is a sixth magnitude giant star with stronger than normal lines of carbon, nitrogen, and barium in its spectrum.〔 The companion is a 13th magnitude star at an angular separation of 27.4″ along a position angle of 275°, as of 2000.〔 ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「HD 156091」の詳細全文を読む スポンサード リンク
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